Window operating device



Jan. 9, 1968 T. R. EWING 3,362,107

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WINDOW OPERATING DEVICE Filed May 11, 1966 2 Sheets-Sheet 2 INVENYUR. Tl/dMfiS R Exam/a United States Patent 3,362,107 WINDOW OPERATING DEVICE Thomas R. Ewing, The Treco Products C0., Bayport, Minn. 55003 Filed May 11, 1966, Ser. No. 549,380 6 Claims. (Cl. 49-339) The invention herein relates to an improvement in a window operating device, and more specifically to one which is adapted to be swung to opened or closed position.

This invention represents an improvement over a sliding bar type of operator in eliminating an undesirable projection. Improvement is present over a crank type of operator and over other known oscillating lever type of operators in providing a simplified operating mechanism having fewer moving parts.

It is an object of this invention therefore to provide a window operating device comprising a compact simplified structure having but few moving parts and a convenient and not unsighly operating handle.

More specifically it is an object of the invention herein to provide a relatively flat compact housing with a relatively small operating handle directly actuating the window operating element.

These and other objects and advantages of the invention will be set forth in the following description made in connection with the accompanying drawings in which like reference characters refer to similar parts throughout the several views and in which:

FIG. 1 is a view in horizontal section showing the device comprising the invention herein in operating position;

FIG. 2 shows a detail in a broken view on an enlarged scale in vertical section taken on line 2-2 of FIG. 1 as indicated;

FIG. 3 is a broken view on an enlarged scale in vertical section taken on line 3-3 of FIG. 1 as indicated;

FIG. 4 is a view in horizontal section on an enlarged scale taken on line 4-4 of FIG. 3 as indicated;

FIG. 5 is a fragmentary view similar to FIG. 4 showing the device positioned for locking in one position;

FIG. 6 is a view similar to that in FIG. 4 showing the elements of the device in a different operating position;

FIG. 7 is a broken view similar to that in FIG. 5 showing in detail the locking mechanism and an alternate locking position of the device; and

FIG. 8 is a view similar to that in FIG. 6 showing a plan view of the locking mechanism.

Referring to the drawings and more particularly to FIG. 1, the window operating device comprising the invention herein is indicated generally by the numeral 10 and is shown secured in operating position on the sill 12 of a casement type of window 14 and is connected as shown to the sash 15 of said window. A sealing strip 12b extends upwardly from said sill and the device is partially disposed through the slot 12a.

Said device 10 comprises a relatively flat base plate 17 which is substantially rectangular in plan having a curved raised leading edge or lip portion 18. The forward area portion 19 of said plate 17 is raised somewhat and has as here shown a recessed substantially triangular central portion 20 therein coplanar with the rear supporting flange portion 21.

Said base plate will be suitably apertured as at 23 to receive appropriate fastening screws. Overlying a substantial portion of said base plate, as shown in FIG. 1, is a cover plate 26 which preferably will be secured in place as by rivets 28.

Extending from said base plate and being disposed to partially overlie the same is a window operating arm 3t having a link portion 31 on the order of a bell crank, an

extended portion 32 integral and rigid therewith and a window connecting channel member 33. Said channel member 33 will be secured to the sash 15, as shown in FIGS. 1 and 2, and will have an inward retaining flange portion 33a to support and retain the cylindrical roller 32a carried at the end of said extended arm portion 32 for slidable pivotal movement between said extended portion 32 and said connecting member 33.

Said link portion 37 is here shown having an extended angled radial arm portion 31a integral with afid extending into said arm 32. Said radial arm portion extends from a somewhat circular or crank portion 31b of said link 31 being pivoted at a somewhat central point thereof to one side of said base plate portion 19 by an upstanding pivot 35 having an upward extending portion 35a of reduced diameter forming therebetween a shoulder support or spacer support 3512 for the cover plate 26.

A pivot link 38 shown to be arcuate in plan is pivoted at one end thereof by a rivet 39 at a point on said base plate area 19 spaced from said pivot 35 at a far side of said area 20 therefrom. The concave side portion of said link 38 is shown facing the bell crank pivot 31.

An operating member 40 for operating the device is shown having an outwardly extending handle 41 and an inwardly extending lever portion 42 having an angled link forming inner end or head portion 43. Said head portion adjacent its angled outer corner portion 43a is pivoted by a rivet type pivot 46 to the other end of said pivot link 38. The free end portion 43b of said head portion 43 is pivoted by rivet 49 to an adjacent portion of the bell crank lever 31 at a point spaced from the rivet 35. The rivets 46 and 49 are positioned to overlie the recessed area 20 and to move therein.

Said pivot link 38 has an open-ended inwardly extending slot or notch 38b centrally of the convex portion thereof.

A slot 45 shown as being arcuate is provided in the base plate 19 extending in a direction to intersect the path of said pivot link 38 and more particularly to come into register with said slot 38b, as shown in FIGS. 5 and 7. Said slot has an enlarged outer end portion, as shown in FIG. 7.

A lock lever 50 comprises a plate member 51 in the form of a quadrant underlying and being pivoted to said base plate 19 by a rivet 54 and having an operating lever or ear 56 angled upwardly to be positioned to be close to an adjacent portion of said lip 18. Said quadrant carries a pin 57 extending upwardly through said slot 45 which in turn has an enlarged head portion 58 to overlie and ride on adjacent side portions of said slot 45.

A plate spring 66 of a generally right-angled form standing on edge, as shown in FIG. 4, is disposed about the rivet 28 and is retained between the base plate 19 and a flange portion 26a depending from the adjacent rear corner of the cover plate 26. Said spring 60 forms a bug shield to close a space between the cover plate and the base plate and to resiliently allow for the passage thereby of the adjacent swinging portion of the link 31.

Operation The device will be mounted onto a window sill in a conventional manner, as shown in FIG. 1. A conventional window stop or sealing member 1211 will extend across the leading portion of the base plate and will provide a slot 12a through which is disposed the leading portion of the base plate 17.

The head portion 43 of the operating member 40 forms the pivotal connection between the bell crank link 31 and the pivot link 38. The handle 41 is swung through something less than degrees to move the window 15 from a closed to a fully opened position. The handle 40 is designed to exert considerable leverage with no considerable amount of effort on the part of the operator being required.

With reference to FIGS. 6 and 4, as the handle 41 is swung from left to right as viewed to open the window, the pivot 46 describes an oscillatory path whereby when the window 15 is opened on the order of one-fourth of a full opening, the slot 38b will come into register With the arcuate slot 45 at which point the lever 56 is swung outwardly to move the head portion 58 of the pin 57 into the slot 38b to lock the window in its first opened looking position. This position is shown in FIG. 7.

As the handle 41 is swung further in opening the Window, when the window is just short of the full open position shown in FIG. 4, the slot 38b will come into register with the arcuate slot 45 a second time and here again the window may be locked in a second opened position by the head portion 58 of the pin 57 being moved into the slot 38b. This locked position with the window almost fully opened is shown in FIG. 5.

With the window in closed position, the pivot 46 will be in an over center position with respect to the functionally related pivots 39 and 49 whereby said window is effectively locked in its closed position.

The spring 6% forms a flexible rear wall protective closure.

It is seen that the operating mechanism is very simple with the operating member 4% being directly pivoted to the window operating arm and in turn being supported by the pivoting link member 38. There are only three members or elements directly involved in operating the device-the bell crank link 31, the head portion 43 of the operating member, and the pivot link 38.

Thus there is here provided a simply constructed window operating device having a positive and relatively trouble free action.

It will of course be understood that various changes may be made in the form, details, arrangement and proportions of the parts, without departing from the scope of applicants invention which, generally stated, consists in a device capable of carrying out the objects above set forth, in the parts and combinations of parts disclosed and defined in the appended claims.

What is claimed is:

1. A window operating mechanism having in combination,

a base plate member,

an arm extending from said base plate member,

means pivoting said arm to said base plate member,

means connecting said arm to said window,

a pivot link member,

means pivoting said pivot link member to said base plate member,

an operating member,

a handle portion of said operating member extending outwardly of said base plate member, a link portion of said operating member overlying said base plate member,

means pivotally connecting said link portion of said operating member to said first mentioned arm at a point on said arm overlying said base plate member and spaced from said first mentioned pivot means, and

means pivotally connecting said link portion of said operating member at a point thereon spaced from said last mentioned pivot means to said pivot link member at a point on said pivot link member spaced from said means pivoting said pivot link member to said base plate member.

2. The structure set forth in claim 1, said pivot link member having a notch formed therein, said notch moving through an oscillatory path by movement of said pivot link member by said operating member,

a slot in said base plate, said slot being positioned to have said notch moved into register therewith, locking means pivoted to said base plate, and a pin carried by said locking means projecting through said slot to engage said notch and lock said pivot link member. 3. The structure set forth in claim 1. said pivot link member having a notch formed therein, said base plate having a slot formed therein positioned to have said notch come into register therewith, said pivot link member and said notch therein being moved through an oscillatory path by said operating member to move said notch into register with said slot at two different opened positions of said window, and a locking means carried by said base plate, said locking means comprising a pin projecting through said slot for movement into said notch and means moving said pin. 4. The structure set forth in claim 1, said pivot link member being arcuate in form and having its concave portion facing said arm, said second mentioned pivot means pivoting said link member at one end thereof, said end being positioned forwardly of said base plate, said link portion of said operating member forming an angled end portion, said last mentioned pivot means connecting the other end of said pivot link member with the outer corner of said angled end portion of said operating member, said third mentioned pivot means connecting the free end of said angled portion of said operating member with said first mentioned arm at a point on said arm remote from said first mentioned pivot means in a direction away from said pivot link member, and all of said pivot means being respectively positioned to place said last mentioned pivot means in an over center locking position with respect to said second mentioned pivot means with said operating member in position to close said window. '5. The structure set forth in claim 1, a cover plate for said base plate, said cover plate being spaced from said base plate along its rear side portion to form a horizontal slot, said first mentioned arm extending through a portion of said slot, and resilient cover means disposed to overlie the remainder of said slot. 6. The structure set forth in claim 1, said base plate member having a recessed area centrally thereof, and said third and fourth mentioned pivot means being positioned to overlie and move within said recessed area.

References Cited UNITED STATES PATENTS 12/1956 Stavenau et al. 49-424 4/1961 Stavenau 7496 FOREIGN PATENTS 2/1931 Germany. 

1. A WINDOW OPERATING MECHANISM HAVING IN COMBINATION, A BASE PLATE MEMBER, AN ARM EXTENDING FROM SAID BASE PLATE MEMBER, MEANS PIVOTING SAID ARM TO SAID BASE PLATE MEMBER, MEANS CONNECTING SAID ARM TO SAID WINDOW, A PIVOT LINK MEMBER, MEANS PIVOTING SAID PIVOT LINK MEMBER TO SAID BASE PLATE MEMBER, AN OPERATING MEMBER, A HANDLE PORTION OF SAID OPERATING MEMBER EXTENDING OUTWARDLY OF SAID BASE PLATE MEMBER, A LINK PORTION OF SAID OPERATING MEMBER OVERLYING SAID BASE PLATE MEMBER, MEANS PIVOTALLY CONNECTING SAID LINK PORTION OF SAID OPERATING MEMBER TO SAID FIRST MENTIONED ARM AT A POINT ON SAID ARM OVERLYING SAID BASE PLATE MEMBER AND SPACED FROM SAID FIRST MENTIONED PIVOT MEANS, AND MEANS PIVOTALLY CONNECTING SAID LINK PORTION OF SAID OPERATING MEMBER AT A POINT THEREON SPACED FROM SAID LAST MENTIONED PIVOT MEANS TO SAID PIVOT LINK MEMBER AT A POINT ON SAID PIVOT LINK MEMBER SPACED FROM SAID MEANS PIVOTING SAID PIVOT LINK MEMBER TO SAID BASE PLATE MEMBER. 